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Mailchimp

Available

This integration is available in Frihet. Configure it in Settings → Integrations → Mailchimp.

Connect your Mailchimp account to Frihet to automatically synchronize your clients with audiences and mailing lists. Mailchimp is one of the most widely used email marketing platforms in the world, with tools for automated campaigns, advanced segmentation, and engagement analytics. With this integration, every client you add or update in Frihet is reflected in your Mailchimp lists without manual intervention.

What is it for?​

  • Automatic Contact Synchronization — Your Frihet clients are automatically added as subscribers to the Mailchimp audiences you choose
  • Segmentation by Commercial Activity — Create segments in Mailchimp based on real invoicing data: active, new, with pending invoices, or inactive clients
  • Smart Tags — Exported contacts include tags with Frihet information such as plan, invoicing volume, and age
  • Always Up-to-Date Data — When you update a client's email or name in Frihet, it automatically updates in Mailchimp
  • Event-Based Campaigns — Use the synchronized data to trigger campaigns when a client receives an invoice, completes a payment, or has been inactive for a while

Requirements​

  • Active account on Mailchimp
  • Frihet Pro or Business Plan
  • Mailchimp API Key
  • At least one audience (list) created in Mailchimp

How to Connect​

Step 1: Obtain your API Key in Mailchimp​

  1. Log in to mailchimp.com
  2. Click on your avatar and select Account & billing
  3. Navigate to Extras → API keys
  4. Click on Create A Key
  5. Give it a descriptive name, for example "Frihet ERP"
  6. Copy the generated API Key (it has the format xxxxxxxxxxxxxxxx-usXX, where usXX indicates the datacenter)

Step 2: Configure in Frihet​

  1. In Frihet, go to Settings → Integrations
  2. Find Mailchimp and click on the card
  3. Paste your API Key in the corresponding field
  4. Click on Test Connection to verify that the credentials are correct
  5. Select the audience (list) where you want to synchronize your clients
  6. Click on Save

Step 3: Initial Synchronization​

  1. Once connected, click on Synchronize Now to export your existing clients to Mailchimp
  2. Verify in Mailchimp that the contacts appear in the selected audience

Data Synchronized​

DataDirectionDetails
Client EmailFrihet → MailchimpUsed as the unique subscriber identifier
First and Last NameFrihet → MailchimpSubscriber FNAME and LNAME fields
CompanyFrihet → MailchimpCOMPANY merge field
TagsFrihet → MailchimpActivity-based tags: plan, status, age
Subscription StatusMailchimp → FrihetIf a contact unsubscribes in Mailchimp, it is marked in Frihet

Use Cases​

Freelancer Sending Newsletters to Clients​

You have a client list in Frihet and want to send them a monthly newsletter with updates. With the integration, every new client you add in Frihet automatically appears in your Mailchimp list. You don't need to export CSVs or copy data manually.

Agency with Segmented Campaigns​

You manage dozens of clients in Frihet. You want to send a campaign only to active clients who have paid in the last 3 months. The tags synchronized from Frihet allow you to create that segment directly in Mailchimp without manually manipulating data.

E-commerce with Post-Purchase Tracking​

You sell products and generate invoices in Frihet. You want to send a thank-you email after each purchase and a reminder to clients who haven't purchased in 30 days. Mailchimp data is kept up-to-date with Frihet's real activity.

Troubleshooting​

Connection Error​

  • Verify that the API Key is correct and has not been revoked
  • Check that the API Key suffix matches your datacenter (e.g., us21)
  • If you regenerated the API Key in Mailchimp, update it in Frihet

Contacts Do Not Appear in Mailchimp​

  • Ensure that clients in Frihet have a registered email — without an email, they cannot be synchronized
  • Verify that the audience selected in Frihet exists and has not been archived in Mailchimp
  • Check that you have not reached your Mailchimp plan's contact limit

Contact Marked as Unsubscribed​

  • If a contact unsubscribes from a Mailchimp email, they cannot be automatically re-added (CAN-SPAM compliance)
  • The contact remains in Frihet but appears as unsubscribed in Mailchimp
  • To re-subscribe, the contact must manually confirm from Mailchimp

Outdated Data​

  • Synchronization runs when you create or edit a client in Frihet
  • If you modified data directly in Mailchimp, those changes are not reflected in Frihet (unidirectional contact synchronization)

Next Steps​